nos big shot

[redneck408]

anyone running into lean condition with big shot plat only #2 cylinder 225 shot 408 with super victor unported ran edelbrock 175hp for three years with no problem switched to nos and burned a hole in #2 piston all timing and fuel all correct for set up any suggestions fogger or another type of plate??????????

[strokethis]

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[86sspcoupe]

Im in the same boat as you.just switched to the big shot also.Use to run the edelbrock with 250 jets and never had an issue.I think the -4 line on the edelbrock really hurts the volume which always gives it a rich tune.I would flip the jetting and still be rich.First time out with the Big shot and I jutted the #4 plug did some damage to the piston and lifted the head gasket between #3-4.I made more power with the big shot over the edelbrock.Picked up .2 in the 1/4 and 2mph in the 1/8.I think it may be in the intake.Im using a Victor Jr.

[feetfirst]

it is the intake. I just pulled my heads(no nitrous) and 1 and 2 were very lean with an unported super victor.

[4rdgasm]

225 hit on my bigshot plate no problems at all ported super victor intake and high ports 420 inches

[redneck408]

who ported the intake

[4rdgasm]

local engine builder he matched it to the heads thats all

[ChopShopBOB_T]

I heard somewhere down the line that the 2 front cylinders usually get starved for fuel upon acceleration because the fuel is being forced towards towards the back of the intake & therefore being sucked up by the last 6 cylinders...........

I dont know where i heard this but it makes sense to some degree ........

I was also told from some friends who are running turbos on 4cyl cars that ,, You could run a separate fuel line to a nitrous nozzel that was plumbed into the front 2 intake bosses.......... the nozzel would be used for supplying fuel Only .............


** Im no expert but,, this is something that i have heard about ........ Make any sense ???????????

[Steve Johnson]

Hey Guys,

The small block Fords are well know for being lean and or hurting there four corner cylinders. I used to think it was something in the single four manifolds myself ?? But after doing a couple of nice sheet metal intakes for a few of B.E.S.'s customers as well as a couple of Hogan sheet metals for some other I quickly found out it was not any of the cast manifolds, there runner, or plenum designs. There are some modifications that can help, but these cylinders still show up sooner or later.

Most conventional plates start to show the problem around the 200-250 jetting. A "cross" style plate will help cover this problem sometimes ?? The best way to go is a direct port system. The you can control these issues a lot better... Hope this help... Steve

[darkhorse254]

Im gonna run a rpm plate kit on a super victor, just wondering if you can mask this problem a bit by running the system on the rich side?:confused: If not I guess I better start drilling my intake!!!;)

[Joshua207]

i haven't had any problems with the bigshot and i were shooting 275 and sometimes 325,,i now run the nos cross plate but i only use it as 2 stages bottom bar 1st stage and top cross bar 2nd stage 225 1st 100 2nd

[darkhorse254]

Thanks for the reply, i hopen to run close to what your runnin on motor and the bottle(cars on the bottle too)...just wonderen what you had to spray to run 8.60? at mph? Im assumen 3.73's on 28s? thanks for the help...

[Joshua207]

i run an 4.10 1050 carb vic jr intake with 1 inch cross plate and 2 inch adap for carb, 225 1st stage and 100 second my cam is a doug herbert solid roller 3500-7500 rpm range but thats with 1.6 rockers i am running 1.7 rockers and plus i retarded the cam 4 vic jr heads flowing 320-230 at 700.build own engine looking like 14.1 comp

[darkhorse254]

You must be runnin a larger tire than 28's to run that much gear??? My junk is a Bennett 382", new cnc highports, bennett 700", 13/1, 950 pro systems. im hopin to run all of 250hp RPM kit on top of a 1" spacer...anyone try stacking spacers to try an help distribution???

[Joshua207]

i cross the trap at 7600 28/10.5 micky thompson

[darkhorse254]

Do you have a glide?

[Joshua207]

yup,, 1.76 first gear,,5200 setup for 486cid bigblock conv motor and nos,,,i ran an 6.18 on motor at 111,,i'm 393w

[Ronnie Carlisle]

I have 393 stroker with NOS plate and it has went lean on number 5 once and number 6. My wife is tired of this crap, does anyone have a fix? 5.97 @116mph on 250 hp. Please help............

[redneck408]

FOGGER the only way to go!!!!!!!!!!!

[Steve Johnson]

Ronnie, Redneck is correct. A direct port system is the best fix. It's not uncommon when you get in the mid 200 horsepower and above for these problems to start. I can guarentee you if you put a direct port system on you will be able to go quicker and faster with more reliability. Most importantly, that will make you and the WIFE happier !! LOL Please feel free to let me know if I can help you out if you decide you want to go with a new direct port system. I would be glad to plumb your intake, flow it and get you set up with a SAFE baseline. Thanks for your time.. Steve

[Ronnie Carlisle]

It would be great to go with a fogger but, the rules are as follows: MODIFIED Street is a heads-up class designed for passenger cars and trucks from a major manufacturer weighing a minimum of 3,100 pounds. Powered by SMALL BLOCKS ONLY with a maximum cubic inch limit of 440 cubic inches. Nitrous only one plate only. One nitrous solenoid, One fuel solenoid, One purge solenoid ONLY. One Nitrous bottle only. Purge must be redundant inline with nitrous supply line with only one supply line. Canted Valve heads allowed add 100 pounds weight. After Market blocks and cylinder heads allowed. Intakes must be cast no welding No sheet metal intakes allowed. Single carburetor only. Motor plates and solid mounts allowed. Engine in stock location and must not touch firewall. Mufflers required on all vehicles no inserts. Turbochargers and superchargers are not allowed. Progressive controlers are not allowed.
http://www.outlawracing.com

[Ronnie Carlisle]

It would be great to go with a fogger but, the rules are as follows: MODIFIED Street is a heads-up class designed for passenger cars and trucks from a major manufacturer weighing a minimum of 3,100 pounds. Powered by SMALL BLOCKS ONLY with a maximum cubic inch limit of 440 cubic inches. Nitrous only one plate onlyOne nitrous solenoid, One fuel solenoid, One purge solenoid ONLY. One Nitrous bottle only. Purge must be redundant inline with nitrous supply line with only one supply line. Canted Valve heads allowed add 100 pounds weight. After Market blocks and cylinder heads allowed. Intakes must be cast no welding No sheet metal intakes allowed. Single carburetor only. Motor plates and solid mounts allowed. Engine in stock location and must not touch firewall. Mufflers required on all vehicles no inserts. Turbochargers and superchargers are not allowed. Progressive controlers are not allowed. Also it might be that I do not have a adequate fuel supply for 250 HP. I have "Y"ed two holley blue pumps together.
http://www.outlawracing.com

[Steve Johnson]

Ronnie, When you say you have the two Holley pumps "Y"'d together are they feeding the engine and nitrous or just nitrous ?? Also, your rule state one nitrous and one fuel solenoid. One plate, does it define if the plate has spray bars or nozzles in it ??? Steve

[SAWB Racing]

Steve, you have my attention on the nozzles in the plate idea, I think I need to hear a little more about this. This might be the ticket for the "plate" class restrictions:D .

[Steve Johnson]

If you would like to talk more about this please e mail me a number I can reach you at or give me a call Monday and we can talk about it. 815-341-8853 Thanks, Steve

[2ndgear91]

"STEVE JOHNSON " GREAT JOB ON THE WORK YOU'VE DONE ON MY
CO-WORKERS INTAKE WOW WHAT A PLUMMING JOB
HES HAS THE 79 BUICK REGAL,WAS HAVING PROBLEMS LEANING OUT,TILL YOU CAME ALONG.
KEEP UP THE GOOD WORK STEVE.....................

ps i keep on telling him that i'm gonna take him down,but he wont listen to me,
STEVE next time you talk to MIKE tell him to listen to EDDIE,,LOL
i'm sure he'll listen to you,thanx ED :D

[Steve Johnson]

Ed, Thanks for the good words. I'm guessing your talking about Mike Pimental ?? Hope he's been having fun with his E3 set up !!! Thanks, Steve

[2ndgear91]

yes ,he's a funny guy ,great to work with.

[strokethis]

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[Steve Johnson]

Stroke this ?? Where's your message ??? SJ

[strokethis]

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